chemistry

EAMCET QUESTIONS FROM CHAPTER  ENVIRONMENTAL CHEMISTRY PART-1

1.The chemical entities present in thermosphere of the atmosphere

1)                                2)                                 3)                                4)

2.Which of the following oxides finally dissolve in water to cause acid rain

1) NO, NO2	2) NO2, SO2	3) NO3, SO3				4) N2O5,SO3

3.5 l aqueous solution is kept in the presence of oxygen and suitable micro-organism for five days at 20^oC. If the O₂ consumed is 0.2 g, the BOD value of the sample is

1) 4 ppm

2) 0.4 mgl-1

3) 40 ppm

4) 20 mgl-1

4.Which of the following is not an air pollutant? 1) CO 2) SO₂3) NO 4) N₂

5.Bhopal gas tragedy of 1984 was caused by

1) Carbon Monoxide  2) Phosgene                3) Methyl cyanate      4) Methyl Isocyanate

6.Which of the following is not an air pollutant?

(1) N₂                         (2) N₂O                       (3) NO                        (4) CO

7.In which part of atmosphere, ozone layer is present?

(1) Stratosphere          (2) Troposphere           (3) Mesosphere           (4) Thermosphere